Mediating armed conflict is to walking through dense fog. Mediating armed conflict means seeking a balance between belligerents, for whom, too often, the desired ends justify any means, and those who are desperate to limit the suffering caused by those means. How far should you go when negotiating with criminal regimes and terrorist organisations? Where do you draw the line between reasonable compromise and selling out? Is negotiation with the Devil ever justifiable and, if so, how do you assess the risks involved? It is this Faustian pact that Pierre Hazan explores from the former Yugoslavia to Burundi, from Mali to Spain, and, most recently, in Ukraine. Alternating between riveting true stories and ethical reflection upon those experiences, Pierre Hazan attempts to provide a moral compass for mediators in a world both violent going through fundamental changes.